How to get inputs from the user in c++ ?

     Inputs are the important in any programming language. For any language, the processing and outputs are based on the input only.

In c++, there are two ways to get the input as follows…

      1. 'cin’ method

      2. 'getline()’ method

Each one is built-in functions in c++.

1. ‘cin’ method:

              This method is included in iostream header file. It reads the input from the user directly.

Syntax : cin>> variable name;

Eg: cin>> name;

Let us create a c++ program to get the input and print it.

C++ program:

#include <iostream>

#include <string>

using namespace std;

int main()

{

 int n;

char a;

string name;

float no1;

cout<< "Enter the number :";

cin >> n;

cout << "Enter the character :" <<endl;

cin >> a;

cout << "Enter the float number :" <<endl;

cin >> no1;

cout <<"Enter the name :" <<endl;

cin >> name;

cout << "The values are:" <<endl;

cout <<  "Number:" << n <<endl;

cout << "Character :" << a <<endl;

cout << "Name: " << name <<endl;

cout << "Float number: " << no1 <<endl;

return 0;

}

Output:

Enter the number :23 Enter the character : s Enter the float number : 45.78 Enter the name : jeyanth

The values are: Number:23 Character :s Name: jeyanth Float number: 45.78

2.‘getline()’ function:

              If you want to read the entire input line with spaces. This is the function you need.

Here is the program to display greetings.

C++ program:

#include <iostream>

#include <string>

using namespace std;

int main() {

    string a;

    cout << "Enter the wishes: ";

    getline(cin, a);  // Reads a full line of input

    cout << a <<"!!";

    return 0;

}

Output:

Enter the wishes: Have a nice day

Have a nice day!!

Hope, these two methods are useful to you. Keep Coding!!!